Sora So"ra, n. (Zo["o]l.)
A North American rail ({Porzana Carolina}) common in the
Eastern United States. Its back is golden brown, varied with
black and white, the front of the head and throat black, the
breast and sides of the head and neck slate-colored. Called
also {American rail}, {Carolina rail}, {Carolina crake},
{common rail}, {sora rail}, {soree}, {meadow chicken}, and
{orto}.
[1913 Webster]

common rail — noun : a single fuel line that supplies oil under pressure to all the cylinders of a diesel engine : header 3c * * * common rail noun A type of diesel injection system • • • Main Entry: ↑common … Useful english dictionary